Construction
Conductor
- Stranded soft annealed copper.
Insulation
- Snug-fitting concentric layer of 90° C polyvinyl chloride (PVC)
Conductor Jacket
- Applied directly over the PVC insulation is a tough nylon jacket offering physical protection to the insulation.
Color Code
- The individual conductors are colored black and identified with printed conductor numbers on each conductor in the cable, per ICEA Method 4.
Cabling
- The specified number of conductors are cabled with or without ground wires, as applicable. Non-hygroscopic fillers are used as needed to maintain a substantially circular cross section, and the entire assembly is wrapped with a suitable cable tape.
Overall Jacket
- A heavy-duty PVC jacket to meet the requirements of UL is applied over the assembled core.
Features
- OSHA Accepted.
- Small diameter, light weight.
- UL Listed for 90° C 600 volts.
- Flame, moisture and sunlight resistant.
- Meets UL 1277 tray fire test with 70,000 BTU/hr. as well as 210,000 BTU/hr. flame source.
- Oil and gas resistant conductors.
- Also resistant to a broad range of chemicals.
Rating
Application
- THHN/TC cable is approved for tray, raceway, direct burial and aerial installations (when supported by messenger). It is also approved for tray use in Class 1, Division 2, hazardous locations as permitted in NEC Articles 318 and 501. It complies with the appropriate sections of NEC Articles 318, 340, 501 and 725.
